JPH0643228B2 - Clamp cleaning method and device in plate reversing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a mechanism for reversing a plate-like object such as a veneer for plywood after gluing for structuring accumulation. The present invention relates to a method and an apparatus for cleaning a clamp that grasps a workpiece.

(Prior art and its problems) When stacking multiple veneers to produce plywood, the veneer veneer glued on the front and back sides by a spreader is smoothly transferred to a predetermined mechanism deposition position. Therefore, a method is adopted in which a clamp device provided on the outer peripheral surface of a rotor or the like grasps this and reverses it, and then supplies and mounts it from above the deposition position. In such a reversing mechanism, the glue adheres to the clamp device that repeatedly grasps the glued veneer, and in order to remove this, it is not the plate reversing mechanism length, but the operation of the entire plywood manufacturing system. It is necessary to stop the operation, which is one of the causes of lowering work efficiency.

(Object of the Invention) In view of the circumstances as described above, the present invention is capable of improving the work efficiency by cleaning the clamp device without stopping the operation of the plate-like object reversing mechanism and various devices continuous thereto. It is an object to provide a method and an apparatus.

(Structure of the Invention) In the cleaning method according to the present invention, a plurality of rows of plate-shaped material clamp portions are arranged on the outer peripheral surface of the rotor so as to extend in the axial direction of the rotor, and the clamp portions are sequentially arranged as the rotor rotates. By opening and closing, a plate-shaped material reversing mechanism that continuously grasps, reverses, and opens the plate-shaped material after gluing. The upper and lower clamp plates are passed by sequentially passing the cleaning water on the circular orbit while grasping the object, and by ejecting air between the upper and lower clamp plates of each clamp of the plate-shaped object clamp section while passing through the cleaning water. It is configured to remove the glue and the like attached to the.

Further, in the cleaning device according to the present invention, a plurality of rows of plate-shaped object clamp portions having an upper clamp plate and a lower clamp plate are arranged on the outer peripheral surface of the rotor so as to extend in the axial direction of the rotor, and the rotor is rotated as the rotor rotates. After opening the plate-shaped object of the plate-shaped object clamp part, in the plate-shaped object reversing mechanism that continuously grasps, reverses, and opens the plate-shaped object after gluing by sequentially opening and closing the clamp part. While arranging the washing water tank on the circular orbit while grasping another plate-shaped object, an air blowout part is formed between the upper and lower clamp plates of each clamp of the plate-shaped object clamp part so that it can rotate relative to the rotor. An annular cam having a large diameter on a part of the outer circumference is coaxially arranged on one end side of the rotor rotation shaft, and a plurality of air ejection operation switches respectively connected to the plate-shaped object clamps are provided through idle rollers. Touch the outer periphery of the annular cam It is installed on the side surface of the rotor so that each operation switch is sequentially brought into contact with the outer circumference of the large diameter of the annular cam by the relative position change between the annular cam and the side surface of the rotor due to the rotation of the rotor. When the clamp part is in the position where it passes through the cleaning water tank on the orbit of the rotor, it is configured to remove the glue and the like adhering to the upper and lower clamp plates by the air ejecting operation between the air ejecting part and the upper and lower clamp plates. There is.

(Embodiment of the Invention) The first and second illustrated reversing mechanisms A are middle plate reversing mechanisms in a plywood mechanism device, and are glued on both front and back surfaces by a spreader (not shown) and continuously transferred by a transport mechanism B. A cylinder for reversing and supplying the coming middle plate C onto the plywood mechanism depositing section D, which is horizontally installed in a direction intersecting the direction of the middle plate C and rotated by a motor (not shown) in the direction of the middle plate C. On the outer peripheral portion of the rotor 10, four rows of clamp portions 20 are installed along the axial direction of the rotor 10 at positions where the circumferential direction of the rotor 10 is divided at equal intervals. Each clamp part 20 has a plurality of clamps 22 mounted at equal intervals on a clamp bearing shaft 21 suspended between the pair of shaft bearing parts 10b and 10b which are erected on both outer peripheral portions of the rotor 10 so as to be relatively rotatable in the axial direction. It is made up of

As shown in the third to seventh drawings, each clamp 22 has an upper clamp plate 22b having a rear end portion to which an idle roller 22a is attached pivotally attached to a lower clamp plate 22d by a pivot shaft 22c so as to be vertically swingable. The guide bar 220 hanging from the bottom is inserted into the slot 223 formed in the lower plate 22d, and the upper clamp plate 22b is always biased in the clamp opening direction by the spring 22e wound around the pivot 22c. Synthetic resin lining plates 221 and 222 are mounted on the tip ends of the upper and lower clamp plates 22b and 22d, respectively, and a plate-like object is held between the lining plates 221 and 222. Lower clamp plate 2
On the rear end side of the 2d lining plate 222, an air ejection plate 225 that is in communication with an air duct 224 described later and has a plurality of air ejection ports 225a is attached.
When the upper and lower clamp plates 22b and 22d are closed, air is ejected toward the clearance between the upper and lower lining plates 221 and 222.

Below the rotor 10, as shown in the first drawing, the washing water tank 4
00 is installed, and the tip end side of each clamp portion 20 is configured to pass through the inside of the washing water tank 400 in a predetermined rotation range of the rotor 10.

In the axial direction of the outer peripheral portion of the rotor 10, as shown in FIG. 8, four clamp operating shafts 11 corresponding to the respective clamp portions 20 are installed so as to be rotatable relative to the bearings 10b and 10b. A plurality of actuating cams 12 corresponding to the respective clamps 22 are configured so that their inclined cam surfaces 12a can abut the lower surface of the rear end roller 22a of the corresponding clamp 22. One end of each clamp actuating shaft 11 is connected to an air cylinder 13 attached to a side surface of the rotor 10 and relatively rotated to the other end of a link lever 14 pivotally supported on the side surface of the rotor 10 at the center. The air cylinder 13 is connected so as to be slidable in the axial direction so that the rotor 10 can be reciprocally driven in the axial direction of the rotor 10. still,
The clamp operating shaft 11 is connected to the clamp bearing shaft 21 so as not to be rotatable relative to each other and to be slidable in the axial direction.

As shown in FIGS. 8 and 9, one end of the rotating shaft 10a of the rotor 10 is rotated relatively to the rotor 10 via a disk plate 15 having a diameter substantially the same as that of the rotor 10 and rotating coaxially therewith. A cylindrical wrap 19 which is capable of rotation and is prevented from rotation by a lever 18 whose one end is fixed to the machine frame 17 is arranged adjacent to the machine wrap 17. An annular boss 19a having a pair of slide covers 200, 200 having a predetermined length is provided on the outer circumference of the lap 19 on the disk plate 15 side.
Is projected, and each slide cover 200 is clamped and fixed to the annular boss 19a at the positions of the slits 200a and 200a formed on the side thereof, and the relative position movement with the annular boss 19a is possible within the length range of the slit 200a. Has become. Also, the slide cover 20.2 of the annular boss 19a
Between 00, an intermediate diameter portion 190 is formed corresponding to the plate-shaped object open rotation range of the clamp portion 20. On the other hand, on the lap 19 side of the disk plate 15, four mechanical valves 30 for operating the respective air cylinders 13 are respectively ...
Are installed radially at equal intervals, and the leaf springs 3 are provided between the tip 30a of each mechanical valve 30 and the outer periphery of the wrap 19.
1, the idle roller 32a is always attached to the lap 19 side, and the base end of the idle lever 32a is attached to the tip of a swing lever 32 pivotally supported on the disk plate 15. The idling roller may be directly attached to the tip of each mechanical valve 30.

On the other end side of the rotating shaft 10a of the rotor 10, as shown in FIG. 10, a disk plate 3 having substantially the same diameter as the rotor 10 is provided.
The cylindrical wrap 34 in which 3 is vertically fixed on the outer circumference is
It is arranged so as to be rotatable relative to the rotor 10 via 5 and is in a rotation preventing state by the connection of the machine frame 17 and the disk plate 33. Disc plate 33 rotor 1
On the 0 side, an idle roller 35a attached to the other end of a lever 35, which is attached to the other end of each clamp actuating shaft 11 so as to be slidable in the axial direction but not rotatable relative to the other end, is fitted and guided. The annular boss 36 having the guide groove 36a
The idling roller 35a is provided in a projecting manner corresponding to a predetermined locus to be moved along with the rotation of the rotor 10.

In the axial direction of the outer peripheral portion of the rotor 10, each clamp operating shaft 1
1, the air duct 224 is further arranged,
Each air duct 224 is connected by a flexible tube 224a to a main duct 225 installed in the axial direction of the rotor 10 and connected to an air compressor (not shown).

On the outer periphery of the side surface of the cylindrical wrap 34 on the side of the rotor 10, as shown in FIGS.
An annular boss 34a that bears 0 is projected, and the slide cover 300 is formed on the side portion thereof to form the slit 300a.
It is fastened and fixed to the annular boss 34a at the position of 300a, and can move relative to the annular boss 34a within the length range of the slit 300a. On the other hand, four mechanical valves 330 are radially installed at equal intervals on the side surface of the rotor 10, and a leaf spring 331 is provided between the tip 330a of each mechanical valve 330 and the outer circumference of the wrap 34 to keep the lap 34 on the side. Energized and proximal rotor 1
An idle roller 332a attached to the tip of a swing lever 332 pivotally supported on the 0 side surface is interposed. The idling roller may be directly attached to the tip of each mechanical valve 330. This mechanical valve 330 is connected to a flexible tube 224a that connects the main duct 225 and each air duct 224, respectively,
It functions as an operation switch for ejecting air from the main duct 225 to each air duct 224. The main duct 225 is connected to the air cylinders 13 and 13 on the side opposite to the rotor 10.

In the reversing mechanism A configured as described above, the disk plate 15 rotates coaxially as the rotor 10 is rotationally driven by a motor (not shown), and the idle rollers 32a at the tip of each swing arm 32 sequentially slide on the outer periphery of the annular boss 19a. By contacting with 200, each mechanical valve 3
0 operates sequentially. In response to a signal from the mechanical valve 30, the corresponding air cylinders 13 are sequentially driven to reciprocate each clamp operating shaft 11 in the axial direction of the rotor 10 via the link lever 14. Along with this, the inclined cam surface 12a of the actuating cam 12 on the clamp actuating shaft 11 abuts against the idle rollers 22a at the rear ends of the clamps 22 and vertically moves them, thereby resisting the urging force of the springs 22e and the upper clamp plate. 22b is opened and closed. The swing arm 3
While the second tip roller 32a contacts the intermediate diameter portion 190 on the outer circumference of the annular boss 19a, the corresponding clamp portion 20 is in the half-opened state.

Further, as the rotor 10 is driven to rotate, the idle rollers 35a of the levers 35 connected to the clamp operating shafts 11 are
Guide groove 3 in annular boss 36 on disk plate 33
The clamp operating shaft 11 is rotated by rolling along 6a, and the entire clamp 22 is swung in the radial direction of the rotor 10.

Further, as the rotor 10 is driven to rotate, the rotor 10
Idling roller 332a at the tip of each swing arm 332 on the side surface
Sequentially contact the slide cover 300 on the outer circumference of the annular boss 34a, whereby the mechanical valves 330 are sequentially operated. Thereby, in the predetermined rotation range of the rotor 10, the air from the main duct 225 is supplied to the air duct 224 via the flexible tube 224a. As a result, when the tip end side of the clamp 22 passes through the inside of the washing water tank 400 after the plate-shaped object is opened, the air ejection port 22
Air is sprayed from 5a, and the upper and lower lining plates 221, 2 of the clamp 22 by the washing water in the washing water tank 400.
Wash 22.

In this way, each plate-shaped object clamp portion 20 on the rotor 10 sequentially opens the clamp 22 at a predetermined position on the orbit of the rotor 10 to receive and grasp the plate-shaped object, and the rotor 1
The receiving plate-like object C is reversed with the rotation of 0, and is oscillated in the radial direction of the rotor 10 at a predetermined position on the orbit of the rotor 10 to bring the receiving plate-like object C into a substantially horizontal state. The receiving plate-like object C is opened with 20 being in a half-opened state. After the plate-shaped object is opened, the clamp part 20 is closed again, passes through the washing water tank, and is rotated to another plate-shaped object grasping area to perform the clamp opening. By repeating this process by each plate-shaped material clamp unit 20, the plate-shaped material is continuously inverted, and the clamp 22 is continuously washed while the reversing mechanism A is operating.

(Effect of the present invention) According to the clamp cleaning method and device in the plate-like object reversing mechanism according to the present invention, the cleaning of the clamp device can be performed without stopping the operation of the reversing mechanism and various devices continuous thereto. Can be performed and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a plate-like object reversing mechanism incorporated in a plywood mechanism device, FIG. 2 is a plan view thereof, and FIGS. 3 to 6 are side cross-sectional views, side views, plan views, and rear views showing details of a clamp, FIG. 7 is an explanatory view showing an air ejection mechanism of the clamp, FIG. 8 is a side sectional view showing one end side of the rotor, and FIG. 9 is a front view of a main part thereof.
FIG. 10 is a side cross-sectional view showing the other end side of the rotor, and FIG. 11 is a front view of relevant parts. 10 …… Rotor, 20 …… Plate-like object Clamp part 400 …… Washing water tank, 22 …… Clamp 22b …… Upper clamp plate 22d …… Lower clamp plate 225 …… Air jet part 330 …… Air jet operation switch 300 ...... Slide cover, 34a …… Annular boss

Claims (3)

[Claims] 1. A plurality of rows of plate-shaped object clamp portions are arranged on the outer peripheral surface of the rotor so as to extend in the axial direction of the rotor, and the clamp portions are sequentially opened and closed as the rotor rotates, so that after gluing. In a plate-shaped object reversing mechanism that continuously grasps, reverses, and releases the plate-shaped object, the circular orbit while the plate-shaped object clamp part releases the plate-shaped object and then grasps another plate-shaped object. While passing through the above washing water in sequence, and by ejecting air between the upper and lower clamp plates of each clamp of the plate-shaped object clamp part while passing through the washing water, the adhesive such as glue adhered to the upper and lower clamp plates Removing the clamp, which is characterized by a clamp cleaning method. 2. A plurality of rows of plate-shaped object clamp portions having upper clamp plates and lower clamp plates are arranged on the outer peripheral surface of the rotor so as to extend in the axial direction of the rotor, and the clamp portions are rotated as the rotor rotates. A plate reversing mechanism that continuously grasps, reverses, and releases the plate-shaped object after gluing by sequentially opening and closing. A washing water tank is placed on a circular orbit while grasping objects, and an air jet is formed between the upper and lower clamp plates of each clamp of the plate-like object clamp part, which is rotatable relative to the rotor and part of the outer circumference. An annular cam having a large diameter is coaxially arranged on one end side of the rotor rotation shaft, and a plurality of air ejection operation switches connected to each plate-shaped object clamp portion are provided on the outer peripheral portion of the annular cam via idle rollers. Low to touch Installed on the side surface of the rotor, and due to the relative position change between the annular cam and the side surface of the rotor due to the rotation of the rotor, each operation switch is sequentially brought into contact with the outer circumference of the large diameter of the annular cam to operate, thereby each plate-shaped object clamp portion. When the is located at the position where it passes through the washing water tank on the orbit of the rotor, air is sprayed from the air spray section between the upper and lower clamp plates to remove glue and other deposits on the upper and lower clamp plates. Characteristic clamp cleaning device. 3. The clamp cleaning device according to claim 2, wherein the annular cam comprises an annular boss having a large-diameter slide cover crowned so that the relative position can be changed.